2.1 - Towards Roll and Sheet film for Still Photography Cellulose nitrate roll film replaced paper-base negatives (1884) in roll film cameras in 1889. Roll-film holders were developed for existing collodion wet and gelatin dry plate cameras. And there were numerous new amateur roll film cameras created for the new fast transparent film.
2 Answers. , Mechanical Engineer. all these colleges have almost the best mechanical engineering program: Massachusetts Institute of Technology , Stanford University, University of CaliforniaââBerkeley,University of Illinois, Cornell University , Princeton University , Carnegie Mellon University, Purdue University......
Best Answer: Duke Medical school has always been in the top 5 in the country and is the most reputable one among its professional schools. Duke is also known for its English and Public Policy departments. On the other hand, the engineering and science have improved over the years, but not considered top-rate. Also it has a higher ranking for its undergraduate (peaked at No. 3 in 1997 and steady at No. 5-8 recently) than grad school.